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RFID-tags are conventionally provided for various things. A RFID system for Internet of Nano Things based on a UMC 180nm CMOS integrated circuit was proposed. The system is intended for identification of tags realized on a surface-acoustic-wave delay lines and designed as a transceiver front-end with operating frequency range of 2.40–2.48 GHz. A polling signal is a stepped frequency chirp, and the...
A method of finding the shortest transfer sequence for the given set of internal states with using operations on ROBDDs is considered. Simplified ROBDDs for transition functions compositions are applied. The ROBDDs are built by using Shannon decomposition first for state and then for input variables. In the simplified ROBDD its path originated by state variables has the only prolongation among input...
Technology shrinking and increasing design frequencies causes problems like IR drop. There are different types of IR drop issues like “Package-ball to bond-pad drop”, “bond-pad to internal global power ring drop” and “internal local power ring drops”. Optimization equations are developed to minimize trace wire length on package for P/G pads drawing highest current. The cost functions in the optimization...
In paper, the technique of generation of all possible structures of digital filters with the fixed number of nodes is offered. As a mathematical model of the structure of the digital filter, a topological matrix of the transmission coefficients between the nodes of the structural scheme was used. Templates have been built for the formation of specific structural schemes. Structural units of block...
The paper presents SPICE models of nonlinear capacitors for analysis of ferroelectric circuits. The capacitors can be defined by either charge-voltage or voltage-charge closed form expressions. Additionally the model for series connection of any number of nonlinear capacitors is proposed. The model takes into account trapped charges of internal connections. Numerical experiments for ferroelectric...
The algorithm of three-dimensional ray tracing based on the principles of geometric optics, mirror image and geometric theory of diffraction is proposed. The algorithm is intended for analysis of electromagnetic waves propagation indoors. The distribution of WLAN signal intensity indoors is simulated using the proposed ways of calculation of the coverage area with account of direct, reflected and...
The problem of ensuring the safety of passengers waiting for public passenger transport at a halting point is considered. In addition, due to the large number of vehicles in the streets and road networks of cities, the lack of parking spaces, there is a problem of parking at bus stops. In order to solve the above problems, it is suggested to equip a bus stop with the necessary equipment for admission...
A new approach to partially programmable combinational circuit design that allows masking single stuck-at faults of wires is considered. It is supposed that only one wire may be fault. The combinational circuit consists of gates, look-up tables (LUTs) and Multiplexers (MUXs). The approach is based on using incompletely specified Boolean functions for finding sub-circuits from gates that may be covered...
The article describes implementation issues of jet-acoustic sensors for building high-speed temperature measuring devices of gas. The brief overview of the existing methods of measurement of high temperatures and their advantages and disadvantages has been examined. The use of fluidics elements here for initiating the oscillations in the acoustic generator has been justified. Solutions of problems...
The paper presents a Finite State Machine (FSM) based approach for deriving tests with reduced complexity, under the White Box testing assumption where all the faulty implementations are explicitly enumerated. The specification and implementation FSMs are assumed to be initialized, i.e., each possibly partial and (non-observable) nondeterministic FSM has a reliable reset. The proposed technique is...
A method for interactive initial placement of Integrated Circuits (IC's) cells is provided. The method is based on multi-parameter criterion placement with customizable coefficients of importance for private criterion together with simulation of thermal field of IC substrate. Graphical user interface (GUI) is provided for thermal field modeling, equipped with a set of abilities for designing which...
The possibilities of using time series for predicting changes in a technical parameter in real time are considered. Forecasting is carried out using simple adaptive models. The prediction procedure should be performed in the background in the microcontroller. Selected adaptive polynomial models of zero, first and second order, based on the method of multiple exponential smoothing. Models are modified...
With the increasing technological complexity modern SoC designs continue to grow in size and involve increasingly more IPs. Therefore, it becomes much harder to complete testing of large SoCs within the desired schedule and cost. Usually an automated hierarchical test helps to solve this problem efficiently but for such systems the preparation of input data, especially IP level information and description...
The market share of portable and loT (Internet of Things) devices has been rapidly growing over the last decade. In parallel the amount of non-volatile memories, especially flash memories, used in such devices has also increased significantly due to their low power consumption and capability of in-field programmability. Therefore, for achieving high production yield the reliability and testability...
In this paper, proposed design of CMOS precision rectifier is presented. The proposed circuit consists of voltage to current converter designed with positive second-generation current conveyor (CCII+), CMOS AB current rectifier and current to voltage converter. The precision rectifier is designed in low-cost Austriamicrosystems (AMS) 0.35 μm CMOS technology. The design and operating principle of rectifier...
The paper describes the development of a universal test functions generator to validate and setup the algorithms for investigating multiextremal systems characteristics. The main difference between the proposed functions and the set of known multiextremal test functions is their irregularity related to the extremes coordinate location and their respective quantitative values, since all known test...
It has been developed a method for through selective processing of aerial photographs in order to improve the of video information security containing data on critical infrastructure objects for a given quality of interpretation. A comparative evaluation of the developed and known methods of processing video information is carried out.
From year to year there are lot of new requirements regarding to the lifetime and reliability of integrated circuits (IC) especially in automotive applications. In align with technology scaling the amount of device's reliability issues are increasing but the quality requirements becoming stronger. Now the aging phenomena becomes one of the critical issues in applications with longer life time. Hence...
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